<s>
Tactical	B-Application
Ops	I-Application
:	I-Application
Assault	I-Application
on	I-Application
Terror	I-Application
is	O
an	O
online	O
multiplayer	O
video	O
game	O
.	O
</s>
<s>
Though	O
it	O
started	O
as	O
a	O
mod	O
for	O
Unreal	B-Operating_System
Tournament	I-Operating_System
in	O
December	O
1999	O
,	O
it	O
soon	O
became	O
available	O
as	O
a	O
retail	O
version	O
,	O
which	O
was	O
released	O
in	O
April	O
2002	O
in	O
the	O
United	O
States	O
by	O
Infogrames	O
,	O
who	O
released	O
it	O
under	O
the	O
MicroProse	O
brand	O
name	O
.	O
</s>
<s>
The	O
retail	O
version	O
is	O
a	O
standalone	O
which	O
does	O
not	O
require	O
Unreal	B-Operating_System
Tournament	I-Operating_System
and	O
contains	O
additional	O
maps	O
not	O
found	O
in	O
the	O
free	O
download	O
.	O
</s>
